1. A scale typically measures the weight of the object on top of it, but actually the weight force is the force of gravity between the object and the Earth. The scale is not part of that interaction, so the scale cannot directly measure the weight. Instead, the scale measures the normal force applied to it, which is not necessarily equal to an object's weight. This means that we can use physics to "trick" a scale into having an incorrect reading. A turtle that weighs 16lbs. is placed on a scale inside an elevator. a) What is the mass of this turtle, in slugs? b) Draw a free body diagram for the turtle and write down Newton's 2nd Law, applied to your diagram. Leave it in symbolic form for now - below, you will plug in numbers. For each of the following scenarios, determine the scale's reading in pounds. You should be thinking about how these answers compare to the fact that the turtle's actual weight is always still 16lbs. c) Elevator is standing still d) Elevator is accelerating downward at 8 ft./s² e) Elevator is moving upward at a constant velocity of 12 ft./s
1. A scale typically measures the weight of the object on top of it, but actually the weight force is the force of gravity between the object and the Earth. The scale is not part of that interaction, so the scale cannot directly measure the weight. Instead, the scale measures the normal force applied to it, which is not necessarily equal to an object's weight. This means that we can use physics to "trick" a scale into having an incorrect reading. A turtle that weighs 16lbs. is placed on a scale inside an elevator. a) What is the mass of this turtle, in slugs? b) Draw a free body diagram for the turtle and write down Newton's 2nd Law, applied to your diagram. Leave it in symbolic form for now - below, you will plug in numbers. For each of the following scenarios, determine the scale's reading in pounds. You should be thinking about how these answers compare to the fact that the turtle's actual weight is always still 16lbs. c) Elevator is standing still d) Elevator is accelerating downward at 8 ft./s² e) Elevator is moving upward at a constant velocity of 12 ft./s
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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